Yes they are, as Captain Marvel has been published from May 1968 to the present. This makes them 44 years old, and part of the golden age of comics.
Surprisingly not very much, at least not as much many other originals, like Superman. C.A. 1 is only worth as much a normal comic book would be.
The value would depend on several factors which are issue, condition of the book, and who signed it.
well i would say 676.98 because the number is reson and I'm nearly on my 784 comic book andMarvel Publishing, Inc., doing business as Marvel Comics,[2] is an American comic book and related media company, and a subsidiary of Marvel Entertainment, Inc.[3] Marvel counts among its characters such well-known properties as Spider-Man, the Fantastic Four, the Hulk, Thor, Iron Man, Captain America, the X-Men, and many others. Most of Marvel's fictional characters operate in one single reality; this is known as the Marvel Universe.[4]The comic book arm of the company started in 1939 as Timely Publications, and by the 1950s was generally known as Atlas Comics. Marvel's modern incarnation dates from 1961, with the launching of Fantastic Four and other superhero titles created by Stan Lee, Jack Kirby, Steve Ditko, and others. Marvel has since become the largest American comic book publisher over long time competitor
issue 138
Without the issue numbers and their condition you'll need to refer to the Overstreet Comic Book Price Guide .
You'll need to refer to the Overstreet Comic Book Price Guide .
$100
the first issue of marvel comics would cost about $3000 this year , it always depends on the year
Guide value is around $50 as of 2013.
You'll need to provide additional information regarding condition and issue number .
Without the issue number and condition you'll need to refer to the Overstreet Comic Book Price Guide .